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Home >> Jeep >> 2016 >> Wrangler Rubicon, Standard Trans >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P1629-TCM Internal - Solenoid Supply/Watchdog >> Possible Causes
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Possible Causes

Possible Causes
(T78) SOLENOID SUPPLY CIRCUIT SHORTED TO VOLTAGE
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .

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